Self-lighting incandescent mantle.



No. 856,578. PATENTED JUNE 1.1, 1907. I

G.GOTTY.

SELF LIGHTING INGAIIDBSOENT MANTLE.

APPLICATION FILED SEPT. 11. 1906.

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UNITED sTArEs GEORGE GOTTY, OF NEW YORK, N. Y.

$ELF-LIGHTiNG INCANDESCENT MANTLE.

Specification of Letters Patent.

Patented June 11, 1907.

Application filed September 11, 1906. Serial N0 334,119.

To all whom it may concern:

Be it known that I, Gnonen Go'rTY, a sub- 'ect of the German Emperor, residing at New ork, in the county of New York and State of New York, have invented certain new and useful Improvements in Self-Lighting Incandescent Mantles, of which the following is a specification;

This invention. relates to self lighting incandescent mantles.

Self lighting incandescent mantles have heretofore not been a commercial success for the reason that they are not reliable, that is, after a short time they will not work. This is caused by the fact that the catalytic sub stance becomes covered with soot which makes it lifeless, or it becomes detached from the mantle either by being blown out of the delicate brittle weaving of the mantle or by fallingtherefrom.

It is an object of my invention to so position the catalytic substance that it will not become covered with soot and at the same time to secure it so that it cannot easily be come detached from the mantle.

Other and further objects will aipear in the following description and will c more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a mantle employing my invention, Fig. 2 is a top view of the mantle, and Fig. is a vertical section, on an enlarged scale, through the upper portion of the mantle adjacent the platinum wire.

As is well known, all mantles, owing to their having their upper ends formed with an inturned portion last longer at their upper ends-than at any other part. Further the outside of this j ort'ion, being thicker than any other part, does not catch as much soot as the other parts. For the above reasons I. place a band of platinum black 2, or other catalytic substance, on. the outside of the mantle 1 and near the upper edge thereof. Not only is the substance well secured to the mantle in a place where it can not easily catch soot, but it is so positioned that the gas issuing from the open end of the mantle sooncomes into contact with the substance and the catalytic action is not delayed. Further the heat at this point is not so great and consequently the catalytic substance does not burn out before the mantle, as isusually the case.

As a means for causing the quick diffusion of the light over the entire surface of the mantle l thicken or reinforce the platinum blackband 2 at one place to form a pellet 3, and lead from this pellet throughout the i length of the mantle, a streak 4 of a catalytic substance, preferably iridium chlorid and platinum.

To assist the action of the pellet I provide a platinum wire 5 which is preferably formed into loops projecting from the outer face of the mantle. The platinum wire has its ends passed through the meshes of the mantle and its inturned portion 6 at the upper end of the streak 4 before the pellet is formed. After the pellet is sebured about the platinum Wire, the wire is held by the pellet and-the pellet is held by the wire, thus securing both against displacement.

in addition to assisting and securing the pellet, the platinum'wire will be effective much longer than the other catalytic substances and is sufficient by itself to cause the ignition althou h not as quick and ellective as the combined arrangement.

The invention is not limited to the particular form of mantle herein shown, nor is it limited to the particular catalytic substances described but is to include any changes within the scope of the appended claims.

Instead of passing the wire through the meshes of the mantle 1 may pass the same arc and the mantle and embed it in the band 2 so as to have its ends projecting from the pellet.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. A self lighting incandescent mantle comprising the mantle having an inturned end, a band of plastic catalytic substance arranged on the outside of the mantle near the upper edge of the latter, said band being reinforced at one point with the same material to form a pellet, and a streak of catalytic substance leading from the pellet.

2. A self lighting incandescent mantle 1 In testimony whereof I affix my signature comprising the mantle, 11' band 01 plastic in presence 0t two witnesses.

' 1 i L C I V v v cataly tlL euhstance sunoundin one end 0t GEORGE GOTTY the mantle. a entdlytic pellet forming part of 5 the band, and a platinum wire surrounding WVitnesses:

the mantle, exnbeddedin the catalytic hand i EDWIN S. CLARKSON,

and projecting from the pellet. l M. E. TUCKER 

